Home / 21,210.36-29,273.10-12,825.24

Finding the Fourth Proportional to 21,210.36, 29,273.10 and 12,825.24

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Solution

The fourth proportional to 21,210.36, 29,273.10 and 12,825.24 is: 17,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.36 : 29,273.10 = 12,825.24 : x
  2. Step 2: Convert to fraction form
    21,210.36/29,273.10 = 12,825.24/x
  3. Step 3: Cross multiply
    21,210.36x = 29,273.10 × 12,825.24
  4. Step 4: Simplify right side
    21,210.36x = 375,434,533.04
  5. Step 5: Solve for x
    x = 375,434,533.04/21,210.36
  6. Step 6: Final answer
    x = 17,700.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.